--- ocamlduce-3.11.1.0/Makefile	2009-06-13 01:49:38.000000000 +0200
+++ ocamlduce-3.11.1.0.new/Makefile	2009-08-18 02:35:04.000000000 +0200
@@ -36,7 +36,7 @@
 	@echo "===> Please explicit what you want <==="
 
 prepare:
-	tar xf $(OCAML_SOURCE)
+	cp -PpR $(OCAML_SOURCE) ./
 	cp -PpR $(DUCEP_FILES) $(OCAML_SRCDIR)
 	cp -PpR ocamlduce $(OCAML_SRCDIR)/otherlibs
 	cd $(OCAML_SRCDIR) && for X in ../patches/*.diff; do patch -p1 < $$X; done